I think it was RT's idea to go on this excursion into the remote desert in July in their new RV at that time (the week before she was going overseas), and he pushed it onto BT, and it was an inconvenience for her and she wasn't thrilled about it. It doesn't matter, IMO, if they had done something similar in the past, or they were 'desert rats' or used to going out in the heat looking at rocks or collecting things or RV camping, with or without beer, cell phones, etc.
She was about to leave on a trip overseas to be with her ailing brother. She didn't seem to be in a favorable mindset about leaving her dog at the kennel. I wouldn't be either if I knew I was about to leave her for my trip overseas, I'd be wanting to spend as much time as I could with my dog before I left (especially if my husband didn't care for her like I did), and be packing and readying things, not going camping in the desert who knows how far from home for who knows how long.
Even with a new truck and RV, and even with their purported experience taking trips in the desert, it is still an effort to pack up food, clothing, supplies, fuel, arrange for the dog to be cared for, find a camping spot that suited their needs, etc. And they are an older couple, so it would be even more taxing for them to undertake such an endeavor compared to people in their 20s, 30s, 40s, 50s, 60s, and right before she had a long trip planned overseas to be with her ailing brother she was close to, that would also be emotionally taxing for her, IMO.
Then she just vanished while they were out walking, according to her husband, and she has never been seen or heard from since.
Her husband called her ailing brother within a few days and said she wasn't going to be able to make the trip overseas to be with him while he was in the hospital because she was missing. He never called his wife's only child (her son MS) to tell him. He hasn't been back in touch with her brother and family since the first few weeks after she went missing on July 12th, according to our VI. And her own family thinks there is foul play involved in her disappearance.
For lack of better terms and with no updates from LE since the search where RT said she went missing was 'suspended' the third week of July, I believe the circumstances surrounding her disappearance are unusual at best, and highly suspicious at worst. IMO and MOO. Hoping for some new information from LE's investigation this week regarding Barbara's whereabouts.